£¨1£©ÊÔÓÉÍòÓÐÒýÁ¦¶¨ÂÉÍƵ¼£ºÈƵØÇò×öÔ²ÖÜÔ˶¯µÄÈËÔìÎÀÐǵÄÖÜÆÚT¸úËü¹ìµÀ°ë¾¶rµÄ3/2´Î·½³ÉÕý±È£®
£¨2£©A¡¢BÁ½¿ÅÈËÔìÎÀÐǵÄÈƵØÇò×öÔ²ÖÜÔ˶¯£¬ËüÃǵÄÔ²¹ìµÀÔÚͬһƽÃæÄÚ£¬ÖÜÆÚÖ®±ÈÊÇ
T1
T2
=
3
3
2
2
£®ÈôÁ½¿ÅÎÀÐǵÄ×î½ü¾àÀëµÈÓÚµØÇò°ë¾¶R£¬ÇóÕâÁ½¿ÅÎÀÐǵÄÖÜÆÚ¸÷ÊǶàÉÙ£¿´ÓÁ½¿ÅÎÀÐÇÏà¾à×î½ü¿ªÊ¼¼Æʱµ½Á½¿ÅÎÀÐÇÏà¾à×îÔ¶ÖÁÉÙ¾­¹ý¶àÉÙʱ¼ä£¿ÒÑÖªÔÚµØÃ渽½üÈƵØÇò×öÔ²ÖÜÔ˶¯µÄÎÀÐÇÖÜÆÚΪT0£®
£¨1£©ÈËÔìÎÀÐÇÈƵØÇò×öÔ²ÖÜÔ˶¯£¬ÍòÓÐÒýÁ¦³äµ±ÏòÐÄÁ¦£º
G
Mm
r2
=m(
2¦Ð
T
)2r

½âµÃ£ºT=
2¦Ð
GM
r
3
2

µØÇòÖÊÁ¿MÊdz£Á¿£¬Òò´ËÈËÔìÎÀÐÇÈƵØÇòÔ˶¯µÄÖÜÆÚTÓëÆä¹ìµÀ°ë¾¶rµÄ
3
2
´Î·½³ÉÕý±È£®
£¨2£©ÉèBÎÀÐǹìµÀ°ë¾¶Îªr2£¬ÔòAÎÀÐǹìµÀ°ë¾¶Îªr1=r2+R
T1
T2
=
(r2+R)
3
2
r
3
2
2
=
3
3
2
2
     ¢Ù
½âµÃr2=2R£¬r1=3R
¿ÉµÃ£º
T1
T0
=
r
3
2
1
R
3
2
=3
3

T2
T0
=
r
3
2
2
R
3
2
=2
2

T1=3
3
T0

T2=2
2
T0

ÉèA¡¢BÁ½ÎÀÐÇ´ÓÏà¾à×î½ü¿ªÊ¼¾­¹ýʱ¼ätµÚÒ»´Î´ïÏà¾à×îÔ¶£¬ÓÐ
£¨
2¦Ð
T2
-
2¦Ð
T1
£©t=¦Ð   ¢Ú
½âµÃʱ¼ät=
3
6
T0
3
3
-2
2
¡Ö3.1T0
´ð£º£¨1£©Ö¤Ã÷ÈçÉÏ£»
£¨2£©ÕâÁ½¿ÅÎÀÐǵÄÖÜÆÚ·Ö±ðÊÇ3
3
T0
¡¢2
2
T0
£»´ÓÁ½¿ÅÎÀÐÇÏà¾à×î½ü¿ªÊ¼¼Æʱµ½Á½¿ÅÎÀÐÇÏà¾à×îÔ¶ÖÁÉÙ¾­¹ý3.1T0£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

ͬ²½Á·Ï°²á´ð°¸